Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-04-17
1994-05-31
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
523137, 524496, 5253315, 525337, 526178, 526239, 528 4, 528 5, C08G 6391, C08G 7908, C08F 800, C08F 452
Patent
active
053170580
ABSTRACT:
A microwave-absorbing material composed of blends of polar icosahedral molecular units with a variety of host matrices, or with polymers with the units covalently bonded in a pendant manner to the polymer chain. Both blends and polymers must impart a high degree of orientational mobility to the units so that they can absorb microwave radiation. These materials employ orientationally mobile, polar icosahedral molecular units as the source of dielectric loss at microwave frequencies. Examples of these units are the polar carboranes (ortho- and meta-carborane), polar carboranes with electronegative and/or electropositive substitutes, and polar "buckminsterfullerenes."
REFERENCES:
patent: 3109031 (1963-10-01), Goldstein
patent: 3201377 (1965-08-01), Green et al.
patent: 3637589 (1972-01-01), Kwasnik et al.
patent: 3699024 (1972-10-01), Klingen et al.
patent: 3816380 (1974-06-01), Reed, Jr.
patent: 3850820 (1974-11-01), Korshak et al.
patent: 4001191 (1977-01-01), Reed, Jr.
patent: 4235987 (1980-11-01), Peters
patent: 5172278 (1992-12-01), Tutt
"Carborane Polymers", Schroeder, Polymer Priprint, vol. 13, No. 2, pp. 764-769, Aug. 1972.
"Electronics Designers's Handbook," Second Edition, edited by L. J. Giacolleto, McGraw-Hill, New York, 1977, pp. 2-47.
"Molecular Spectra and Molecular Structure. III. Elecronic Spectra and Electronic Structure of Polyatomic Molecules," Van Nostrand, New York, 1966, p. 585.
"Solvent-modified Polymer Networks. Part I," J. R. Millar et al., J. Chem. Soc., Pt. 1, 218-225 (1963).
"Crystal Structure of Osmylated C.sub.60 : Confirmation of the Soccer Ball Framework," J. M. Hawkins et al., Science 252, 312-313 (1991).
"Ab initio self-consistent filed (SCF) calculations on borane icosahedra with zero, annie, or two substituted carbon atoms," T. A. Green, A. C. Switendick, and D. Emin, J. Chem, Phys., 6815 (1988).
"Stretching Vibrations of CH Bonds in Spectra of Dicarbaclosododecarboranes," L. A. Leite and S. S. Buklalov, Bull, Acad Sci. USR Chem. Sci. 38, 2079-2082 (1989).
"The Dipole Moments of the Isomers of Dicarbadecaborane, B.sub.10 H.sub.10 C.sub.2 H.sub.2," A. W. Laubengayer and W. R. Rysz, Inorg. Chem. 4, 1513-1514 (1985).
"Use of Dipole Moments to Determine the Structure of Halogen Derivatives of Ortho- and Meta-Carboranes," V. I. Stanko, et al., Zhurnal Strukturnoi Khimii 8, 928 (1967).
"Dipole Moments of Halogen Derivatives of Ortho- and Meta-Carboranes," A. I. Echeistova et al., Zhurnal Strukturnoi Khimii 8, 928 (1967), 933 (1967).
"The Dipole Moments of Boron and Carbon Brominated Carboranes," R. Marcua, et al., Inorg. Chem. 6, 572 (1967).
"Solid state phase transitions and molecular reorientation in ortho- and para-carborane: An Isomer effect," P. Beckmann et al., J. Chem, Phys. 72, 4600 (1980).
"Chemistry of Decaborane-Phosphorus Compounds," H. D. Smith et al., vol. 4, No. 1, Jan. 1965.
"High-resolution solid-state B and CMASNMR of isosahedral carboranes," R. K. Harris et al., Spectrochimica Acta 44A, 273 (1988).
"Highly resolved gradient patterns in glass by means of chemical vapor deposition," Wolkow et al., Mater. Res. Soc., Pittsburgh, Pa. (1990).
"Polyaniline-ormasil Nanocomposites," S. J. Kramer et al., Department of Materials Science and Engineering and Department of Chemistry and Biochemistry and the Solid State Science Center, University of California, Los Angeles.
"Microwave transport in the emeraldine form of polyaniline," H. H. S. Javadi et al., Phys. Rev. B 39, 3579 (1989).
R. W. Pekala et al., "Organic aerogels: A new type of ultrastructured polymer," Report No. DE91-008500, UCRL-JC-106520), Feb. 1, 1991.
"Electromagnetic Wave Absorbers and Anechoic Chambers Through the Years," W. H. Emerson, IEEE Trans. on Antennas and Propagation AP-21, 484-489 (1973).
"Radar Cross Section Handbook," vol. 2, edited by G. T. Ruck, Plenum, New York, 1970, pp. 611-630.
"Low-density resorcinol-formaldehyde aerogels for direct-drive laser inertial confinement fusion targets," L. M. Hair et al., J. Vac. Sci. Technol. A, vol. 5, No. 4, Jul./Aug. 1988.
"Glasses from aerogels," J. Phalippou et al., J. Materials Science 25 (1990), 3111-3117.
"Bonding aerogels with polyurethanes," F. Matthews and M. D. Hoffman, Report No. DE90-03050, UCRL-101602, CONF-8905241-1; Contract No. W-7405-ENG-48; Lawrence Livermore National Lab., Calif.; Nov. 1989; Paper presented at the Society of Plastics Engineers Annual Technical Conference, Dallas, Tex., May 7-11, 1989.
J. Store-Pellinen et al., IEEE 1989 Ultrasonic Symposium Proceedings (IEEE Cat. No. 89 CH2791-2), vol. 1, 665 (1989).
B. T. Khuri-Yakub et al., IEEE 1988 Ultrasonics Symposium Proceedings (IEEE Cat. No. 88CH2578-3), vol. 1, 503 (1988).
"Development of low density silica aerogel as a capture medium for hyper-velocity particles," L. W. Hrubesh et al., Report No. DE91-008563, UCRL-CR-105858-SUMM, Contract No. W-7405-ENG-48, Lawrence Livermore National Lab, Calif.; Dec. 1990.
Chow James R.
Dougherty Thomas K.
Harris Norman H.
Pierce Brian M.
Whelan David A.
Alkov L. A.
Denson-Low W. K.
Hughes Aircraft Company
Michl Paul R.
Yoon Tae H.
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